Clitocybe subcordispora

Clitocybe subcordispora is a rare species of mushroom-forming fungus first described by the Finnish mycologist Harri Harmaja in 1969. It is characterized by its brownish, hygrophanous cap with red tints, pure white spore print, and distinctive subcordiform (somewhat heart-shaped) spores measuring 4.2–6.2 by 3.0–4.0 micrometres. This saprotrophic fungus grows in rows or arcs in dry, nutrient-poor heath forests dominated by pine or spruce, occasionally under Siberian larch or among mosses. The species is known only from hemiboreal and southern boreal zones of eastern Finland and is considered very rare....read more on Wikipedia.